The GovTwit Directory has a project to monitor all levels of Government that use Twitter. It includes Federal, State, and Local officials as well as the Armed Forces and Executive Branch agencies. It is maintained by Steve Lunceford (@dslunceford).

Squeejee, a Texas-based web development shop, launched Tweet Congress which allows users to search for their own Congressional officials on Twitter, follow them, and even petition them if they are not on Twitter.